31238180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1163}}^1$

素因数の和:1268

約数の個数: 48

約数和(自身を含む): 70398720

約数和(自身を除く): 39160540

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 79, 85, 158, 170, 316, 340, 395, 790, 1163, 1343, 1580, 2326, 2686, 4652, 5372, 5815, 6715, 11630, 13430, 19771, 23260, 26860, 39542, 79084, 91877, 98855, 183754, 197710, 367508, 395420, 459385, 918770, 1561909, 1837540, 3123818, 6247636, 7809545, 15619090, 31238180]

約数ペア:

[(1, 31238180), (2, 15619090), (4, 7809545), (5, 6247636), (10, 3123818), (17, 1837540), (20, 1561909), (34, 918770), (68, 459385), (79, 395420), (85, 367508), (158, 197710), (170, 183754), (316, 98855), (340, 91877), (395, 79084), (790, 39542), (1163, 26860), (1343, 23260), (1580, 19771), (2326, 13430), (2686, 11630), (4652, 6715), (5372, 5815)]